Safety & data
Decision support — not a diagnosis.
How it stays trustworthy
Designed to be wrong safely
Retrieved, cited facts
Interaction severity comes from the DDInter 2.0 dataset and is cited with its source IDs. The model explains that fact; it does not decide it.
Abstains over guessing
If a medication can't be confidently resolved to the dataset, Pharos says it can't verify it. An unknown or unmatched drug is never presented as "safe."
Honest about gaps
DDInter is US/English-centric, so some international brand or generic names won't resolve — and Pharos abstains rather than mislead. It is not a complete interaction checker.
Privacy
Your medications never leave your phone
On-device by default
OCR, normalization, the interaction lookup, and the explanation all run locally. No label image and no medication data is sent to a server. The solo tier does zero network I/O during a scan.
Encrypted shelf
Your saved medication list is held in the device's secure keystore. In the mesh tier, only the retrieved interaction fact is delegated for explanation — your shelf and photos stay on the phone.
Data & licensing
Sources and terms
- DDInter 2.0 — drug-drug interactions and severity. Licensed CC BY-NC 4.0 (non-commercial, attribution required) — fine for this non-commercial entry, but it constrains commercial reuse.
- MedPsy models run on-device via Tether's QVAC SDK; confirm the model card terms for your use.
- Project code is Apache-2.0. Bundled datasets retain their own licenses — see
NOTICEin the repository.